Akio Takebe wrote:
> Hi, Eddie and Kaz
>
>> I did a quick grep and find MINSTATE_PHYS is never defined in
>> xenlinux. Xen mca code did. Anything missed?
>>
> The minstate.h is a little old, it seems to be around linux-2.6.9.
> Current linux-xen is 2.6.18, so the code may be not nessesary.
> Kaz,
Kouya Shimura wrote:
> Hi,
>
> In a SMP machine, complete synchronizing ITCs is impossible.
Agree,
But the difference is limited in a small range,
So, when application is migrated to another CPU, it will see ITC > what
it saw last time.
That means, itc difference have to be less than the itc cycl
Isaku Yamahata wrote:
> On Fri, Feb 01, 2008 at 06:11:13PM +0800, Zhang, Xiantao wrote:
>> Hi,Isaku
>> I have a question about the mechanism for save/restore vhpi. In
>> current save/restore code, vhpi register is only saved and restored
>> by vlsapic_save/load, but it maybe not enough for ensurin
Could you try the attached patch?
NOTE: I did NOT compile/test it. But I believe it's easy to fix.
On Fri, Feb 01, 2008 at 07:19:06PM +0900, KUWAMURA Shin'ya wrote:
> Hi,
>
> I report a benchmark result of this week on IPF using
> ia64/xen-unstable and ia64/linux-2.6.18-xen.
>
> I did not test a
On Fri, Feb 01, 2008 at 06:11:13PM +0800, Zhang, Xiantao wrote:
> Hi,Isaku
> I have a question about the mechanism for save/restore vhpi. In current
> save/restore code, vhpi register is only saved and restored by
> vlsapic_save/load, but it maybe not enough for ensuring correctness. IMO, we
>
On Fri, Feb 01, 2008 at 04:01:04PM +0800, Xu, Anthony wrote:
> Isaku Yamahata wrote:
> > On Fri, Feb 01, 2008 at 03:08:24PM +0800, Xu, Anthony wrote:
> >> In DomU, ar.itc is not virtualized, so application can get itc
> >> directly. When DomU is migrated, how do you prevent vitc jump a lot(
> >> fo
Hi,
In a SMP machine, complete synchronizing ITCs is impossible.
(i.e. each cpu's ITC has some error)
So small backward jump might occur in native SMP linux
except that a process is pinned to a cpu.
Does its DB perform pinning?
Thanks,
Kouya
Xu, Anthony writes:
> Isaku Yamahata wrote:
> > On Fri
Hi,
I report a benchmark result of this week on IPF using
ia64/xen-unstable and ia64/linux-2.6.18-xen.
I did not test a VTi domain, since loading xen-platform-pci.ko failed:
Loading xen-platform-pci.ko module
xen_platform_pci: Unknown symbol xencomm_hypercall_suspend
insmod: error inserting
Hi,Isaku
I have a question about the mechanism for save/restore vhpi. In current
save/restore code, vhpi register is only saved and restored by
vlsapic_save/load, but it maybe not enough for ensuring correctness. IMO, we
need to call PAL_VPS_SET_PENDING_INTERRUPT again to set it, and make cpu
Isaku Yamahata wrote:
> On Fri, Feb 01, 2008 at 03:08:24PM +0800, Xu, Anthony wrote:
>> In DomU, ar.itc is not virtualized, so application can get itc
>> directly. When DomU is migrated, how do you prevent vitc jump a lot(
>> foreward/backward)?
>
> Currently nothing prevents it. So a big itc jump
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